Article
Importance of shared genes and shared environments for symptoms of depression in older adults.
Journal of abnormal psychology - 1 Nov 1992
Gatz M, Pedersen N L, Plomin R, Nesselroade J R, McClearn G E
Abstract excerpt
The Center for Epidemiologic Studies-Depression scale was administered to 68 identical and 161 fraternal twin pairs reared apart and 114 identical and 138 fraternal pairs reared together to ascertain relative genetic and environmental contributions to individual differences in self-reported depressive symptoms. Intraclass correlations and model fitting indicated that genetic influences explained 16% of the...
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